1878-1967 Sandburg, C. (1960). Abraham Lincoln: The prairie years and the war years: in three volumes (Primera edición.). Editoral Dell Publishing.
Citazione stile Chigago Style (17a edizione)1878-1967 Sandburg, Carl. Abraham Lincoln: The Prairie Years and the War Years: in Three Volumes. Primera edición. New York: Editoral Dell Publishing, 1960.
Citatione MLA (8a ed.)1878-1967 Sandburg, Carl. Abraham Lincoln: The Prairie Years and the War Years: in Three Volumes. Primera edición. Editoral Dell Publishing, 1960.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.